2.NBT.B.7 Lesson Plans

CCSS.MATH.CONTENT.2.NBT.B.7

:
"Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds."

Our Take: Second grade students learn to add and subtract within 1000. When adding and subtracting three-digit numbers using the standard method, students know that they add numbers in the same place value column (for example, adding digits in the hundreds column with other digits in the hundreds column). Students use this understanding of place value when utilizing other addition and subtraction strategies. For example, a child may use visual tools, such as place value blocks or a number line, to help solve problems.

These lesson plans can help students practice this Common Core State Standards skill.

Lesson Plans

Party Leftovers
Party Leftovers
Lesson plan
Party Leftovers
Planning a party can be exhausting! But even when the party is over, there can be a lot to do. In this lesson, students use subtraction to figure out what’s left at the end of a party.
2nd grade
Math
Lesson plan
Building My Math Fluency
Building My Math Fluency
Lesson plan
Building My Math Fluency
Tap into students' metacognitive skills and get them to think about their thinking! This lesson encourages students to pay attention to the strategies they use while supporting math fluency!
2nd grade
Math
Lesson plan
Three-Digit Addition Strategies Review
Three-Digit Addition Strategies Review
Lesson plan
Three-Digit Addition Strategies Review
Use this lesson to review three-digit addition strategies including base-ten drawings, number lines, and the standard algorithm.
2nd grade
Math
Lesson plan
Composing and Decomposing
Composing and Decomposing
Lesson plan
Composing and Decomposing
Use this lesson to introduce composing and decomposing as part of your students’ addition and subtraction toolkits.
2nd grade
Math
Lesson plan
Three-Digit Addition with Base-Ten Models
Three-Digit Addition with Base-Ten Models
Lesson plan
Three-Digit Addition with Base-Ten Models
Give your students a conceptual understanding of three-digit addition with this lesson focused on base-ten blocks and drawings.
2nd grade
Math
Lesson plan
Decomposing and Adding Place Values
Decomposing and Adding Place Values
Lesson plan
Decomposing and Adding Place Values
Use this scaffolded EL support lesson to help students learn the strategy of decomposing three-digit numbers to add their place values. This lesson can be used alone or prior to teaching Composing and Decomposing to students.
2nd grade
Math
Lesson plan
Regrouping with Base-Ten Blocks
Regrouping with Base-Ten Blocks
Lesson plan
Regrouping with Base-Ten Blocks
Dive deep into using base-ten blocks to solve two-digit subtraction problems with regrouping. This lesson can be used independently or in conjuction with the lesson Double Trouble: Subtraction Practice.
2nd grade
Math
Lesson plan
Comparing Strategies for Three-Digit Addition
Comparing Strategies for Three-Digit Addition
Lesson plan
Comparing Strategies for Three-Digit Addition
This lesson helps students develop an ability to compare and contrast as they explore two strategies to solve three-digit addition problems. This EL Math lesson can be used alone or alongside Three-Digit Addition Strategies Review.
2nd grade
Math
Lesson plan

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